1. take down, degrade, disgrace, demean, put down -- (reduce in worth or character, usually verbally; "She tends to put down younger women colleagues"; "His critics took him down after the lecture")

1.

Else would he never so demean himself. - from The Complete Works of William Shakespeare by William Shakespeare

2.

Swear like a ruffian and demean himsel. - from The Complete Works of William Shakespeare by William Shakespeare

3.

"You won't deign to demean yourself by marrying me, you..." said Helene, beginning to cry. - from War and Peace by Leo Tolstoy

4.

I admit that _I_ am a spy, and that it is considered a discreditable station--though it must be filled by somebody but this gentleman is no spy, and why should he so demean himself as to make himself one. - from A Tale of Two Cities by Charles Dickens

5.

Pfuel only snorted contemptuously and turned away, to show that he would never demean himself by replying to such nonsense as he was now hearing. - from War and Peace by Leo Tolstoy

6.

Balashev began to feel uncomfortable as envoy he feared to demean his dignity and felt the necessity of replying but, as a man, he shrank before the transport of groundless wrath that had evidently seized Napoleon. - from War and Peace by Leo Tolstoy